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... > Enzymes and Coenzymes > Enzymes > Transferases > Phosphotransferases > Diphosphotransferases > GTP Pyrophosphokinase

Preferred term

GTP Pyrophosphokinase  

Type

  • Topical Descriptor

Broader concept

Entry terms

  • ATP Guanosine Phosphate Pyrophosphotransferase
  • ATP-Guanosine Phosphate Pyrophosphotransferase
  • Factor, Stringent
  • Pyrophosphotransferase, ATP-Guanosine Phosphate
  • Stringent Factor

Scope note

  • An enzyme that catalyzes reversibly the transfer of a pyrophosphate group from ATP to the 3'-OH group of GDP or GTP with the formation of guanosine 3'-diphosphate 5'-diphosphate or guanosine 3'-diphosphate 5'-triphosphate and AMP. The enzyme, also called stringent factor, is located in the relA gene in stringent strains of bacteria. The above synthesis is induced by mRNA and uncharged tRNA which is bound to the aminoacyl-t-RNA binding site of the ribosome by a codon-specific association. EC 2.7.6.5.

History note

  • 92; was ATP-GUANOSINE PHOSPHATE PYROPHOSPHOTRANSFERASE 1980-91 (see under PHOSPHOTRANSFERASES, ATP 1980-90)

In other languages

URI

http://www.yso.fi/onto/mesh/D001277

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